2018-06-06 02:42:14 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2005-04-16 22:20:36 +00:00
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/*
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2005-11-02 03:58:39 +00:00
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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2005-04-16 22:20:36 +00:00
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*/
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2019-08-26 19:08:10 +00:00
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#include "xfs.h"
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2006-10-20 06:28:16 +00:00
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#include <linux/backing-dev.h>
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2011-03-06 23:00:35 +00:00
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#include "xfs_message.h"
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2019-08-26 19:08:10 +00:00
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#include "xfs_trace.h"
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2005-04-16 22:20:36 +00:00
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void *
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2012-04-02 10:24:04 +00:00
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kmem_alloc(size_t size, xfs_km_flags_t flags)
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2005-04-16 22:20:36 +00:00
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{
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2005-10-21 07:20:48 +00:00
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int retries = 0;
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gfp_t lflags = kmem_flags_convert(flags);
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void *ptr;
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2005-04-16 22:20:36 +00:00
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2019-08-26 19:08:10 +00:00
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trace_kmem_alloc(size, flags, _RET_IP_);
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2005-04-16 22:20:36 +00:00
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do {
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2010-01-20 21:55:30 +00:00
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ptr = kmalloc(size, lflags);
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2019-08-26 19:06:22 +00:00
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if (ptr || (flags & KM_MAYFAIL))
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2005-04-16 22:20:36 +00:00
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return ptr;
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if (!(++retries % 100))
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2011-03-06 23:00:35 +00:00
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xfs_err(NULL,
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2015-10-12 05:04:45 +00:00
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"%s(%u) possible memory allocation deadlock size %u in %s (mode:0x%x)",
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2015-10-12 04:41:29 +00:00
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current->comm, current->pid,
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2015-10-12 05:04:45 +00:00
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(unsigned int)size, __func__, lflags);
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2009-07-09 12:52:32 +00:00
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congestion_wait(BLK_RW_ASYNC, HZ/50);
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2005-04-16 22:20:36 +00:00
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} while (1);
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}
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